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IPv6: Delete redundant counter of IPSTATS_MIB_REASMFAILS

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When no more memory can be allocated, fq_find() will return NULL and
increase the value of IPSTATS_MIB_REASMFAILS. In this case,
ipv6_frag_rcv() also increase the value of IPSTATS_MIB_REASMFAILS.

So, the patch deletes redundant counter of IPSTATS_MIB_REASMFAILS in fq_find().
and deletes the unused parameter of idev.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shan Wei 2010-02-11 00:12:45 +00:00 committed by David S. Miller
parent 564517e804
commit 9546377c42
1 changed files with 4 additions and 9 deletions
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13
net/ipv6/reassembly.c
View file

@ -237,8 +237,7 @@ static void ip6_frag_expire(unsigned long data)
}
static __inline__ struct frag_queue *
fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
struct inet6_dev *idev)
fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst)
{
struct inet_frag_queue *q;
struct ip6_create_arg arg;
@ -254,13 +253,9 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
if (q == NULL)
goto oom;
return NULL;
return container_of(q, struct frag_queue, q);
oom:
IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_REASMFAILS);
return NULL;
}
static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
@ -606,8 +601,8 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
ip6_evictor(net, ip6_dst_idev(skb_dst(skb)));
if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
ip6_dst_idev(skb_dst(skb)))) != NULL) {
fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr);
if (fq != NULL) {
int ret;
spin_lock(&fq->q.lock);